DanA100

After the CAT i guess i have to replace my 130k miles old Oxy sensor.
I didn't want to spend $130-150 for an original "3 wire" BOSCH sensor, that's why i followed the advice from 20v.org and i bought BOSCH oxy sensor for $45 that has three wires but fits only Ford cars and needs splicing.
Now i have to cut the wires from the old sensor and attach them to the new one so i can use the plugs/harness/. The new sensor has 2 white wires and one black. The old one has exactly the same wires too. ( 2 white, 1 black)
My question is....how should i connect the white wires? They are both the same in color but which goes where? Does it make any difference at all?
Is the black wire for the sensor itself or it's used for the heater /(+) or (-)/?
Help please - i'm confused.

MikTip

2 white wires are for the heating element in the O2. Black wire is the sensor wire. Connecting the white wires in any order.

DanA100

Thanks again!